Quantum deficit originates in questions regarding work extraction from quantum systems coupled to a heat bath (Oppenheim et al. in Phys Rev Lett 89:180402, 2002). It links quantum correlations with quantum thermodynamics and provides a new standpoint for understanding quantum non-locality. In this paper, we propose a new method to evaluate the one-way deficit for a class of two-qubit states. The dynamic behavior of the one-way deficit under decoherence channel is investigated, and it is shown that the one-way deficit of the $$X$$X states with five parameters is more robust against decoherence than entanglement.
CITATION STYLE
Wang, Y. K., Jing, N., Fei, S. M., Wang, Z. X., Cao, J. P., & Fan, H. (2015). One-way deficit of two-qubit X states. Quantum Information Processing, 14(7), 2487–2497. https://doi.org/10.1007/s11128-015-1005-1
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